Mallows Bay on the eastern shore of the Potomac River in Maryland is home to the largest ship graveyard in the Western hemisphere. At first glance – and with no sense of scale – this may appear to be a shoal of fish or a group of large aquatic animals. The reality is, however, you’re seeing the remains of between 100 and 200 ships, each the size of a football field, rotting slowly into the mud or being overgrown by vegetation. During World War 1 the US Government undertook a massive shipbuilding effort – only to see hundreds…